Carburetor PHBG Racing for 2-Stroke 50cc-90cc | fits SX50, RS50, RX50, MX50, MBK

GOOFIT PHBG Series Racing Carburetor for 50cc–90cc 2-Stroke Mopeds

Unlock the true potential of your 2-stroke engine. This high-performance PHBG-style Racing Carburetor is the premier choice for riders looking to upgrade their 50cc to 90cc scooters and mopeds. Specifically designed for European and racing-spec platforms like the RS50, SX50, and MBK 50, this carburetor provides the refined air-fuel atomization required to eliminate "dead spots" in your acceleration and deliver a significant power boost.

Available in both 19mm and 21mm bores, the PHBG series is world-renowned for its ease of tuning and consistent performance. Whether you are running a stock cylinder or a high-revving 70cc/90cc Big Bore kit, this carburetor ensures your engine stays cool and responsive under full-throttle conditions.

Product Compatibility

• Model Fitment: Fits 50cc, 70cc, 80cc, and 90cc 2-stroke engines.
• Target Vehicles: MBK 50, SX50, RS50, RX50, MX50, and various other moped/scooter platforms.
• Engine Type: 2-Stroke (2T) liquid-cooled or air-cooled engines.

Available Sizes:

• 19mm (0.74"): Ideal for 50cc-70cc sport setups, offering a perfect balance of fuel economy and throttle response.
• 21mm (0.82"): The racing standard for 70cc-90cc "Big Bore" builds, providing maximum airflow for top-end speed.

Why Choose the GOOFIT PHBG Racing Series?

• Superior Material Build: Constructed from high-strength, lightweight alloys designed to resist the vibration and heat of high-RPM racing.
• Precision Tuning: The PHBG design allows for incredibly fine adjustments of the idle, needle position, and main jets, making it the most user-friendly performance carb on the market.
• Improved Engine Longevity: By providing a more consistent fuel-to-oil mixture, it helps prevent lean-running conditions that can lead to engine seizures.
• Racing Throttle Response: Features a high-precision slide and needle system that delivers instant power the moment you twist the throttle.